https://bbs.archlinux.org/viewtopic.php?id=231047
pacman -S archlinux-keyring
pacman-key --refresh-keys
pacman-key --refresh-keys
https://bbs.archlinux.org/viewtopic.php?id=231047
pacman -S archlinux-keyring
pacman-key --refresh-keys
pacman-key --refresh-keys